predis/lib/Predis/Commands/SetAdd.php

<?php

namespace Predis\Commands;

use Predis\Helpers;

class SetAdd extends Command
{
    public function getId()
    {
        return 'SADD';
    }

    protected function filterArguments(Array $arguments)
    {
        return Helpers::filterVariadicValues($arguments);
    }

    public function parseResponse($data)
    {
        return (bool) $data;
    }
}